1naresh

Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)
1nareshArray
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)

Table 1: Baseline demographics
Demographics 
Total MR venograms Included 429
Total patients included 429
No. of MR venograms with IV contrast (%) 327 (76.2)
Age categories (No.) (%) (yr) 
 0 25 (5.8)
 1–5 24 (5.6)
 6–10 21 (4.9)
 11–15 70 (16.3)
 16–20 289 (67.4)
Mean age (SD) (yr) 15.1 (5.9)
Male (No.) (%) 129 (30.0)

Demographics
Total MR venograms Included	429
Total patients included	429
No. of MR venograms with IV contrast (%)	327 (76.2)
Age categories (No.) (%) (yr)
0	25 (5.8)
1–5	24 (5.6)
6–10	21 (4.9)
11–15	70 (16.3)
16–20	289 (67.4)
Mean age (SD) (yr)	15.1 (5.9)
Male (No.) (%)	129 (30.0)